ADVANCE
CYW43570
12.3 Signal Descriptions
The signal name, type, and description of each pin in the CYW43570 is listed in Table 19. The symbols shown under Type indicate
pin directions (I/O = bidirectional, I = input, O = output) and the internal pull-up/pull-down characteristics (PU = weak internal pull-up
resistor and PD = weak internal pull-down resistor), if any.
Table 19. Signal Descriptions
Ball
Signal Name
Type
Description
WLAN Receive RF Signal Interface
T1
WRF_RFIN_2G_CORE0
WRF_RFIN_2G_CORE1
WRF_RFIN_5G_CORE0
WRF_RFIN_5G_CORE1
WRF_RFOUT_2G_CORE0
WRF_RFOUT_2G_CORE1
WRF_RFOUT_5G_CORE0
WRF_RFOUT_5G_CORE1
WRF_TSSI_A_CORE0
I
2.4 GHz WLAN CORE0 receiver input.
2.4 GHz WLAN CORE1 receiver input.
5 GHz WLAN CORE0 receiver input.
5 GHz WLAN CORE1 receiver input.
2.4 GHz WLAN CORE0 PA output.
2.4 GHz WLAN CORE1 PA output.
5 GHz WLAN CORE0 PA output.
5 GHz WLAN CORE1 PA output.
AC11
AC4
AC22
V1
I
I
I
O
O
O
O
I
AC13
AC2
AC20
W7
5 GHz TSSI CORE0 input from an optional external power
amplifier/power detector.
W16
W9
WRF_TSSI_A_CORE1
I
5 GHz TSSI CORE1 input from an optional external power
amplifier/power detector.
WRF_GPIO_OUT_CORE0
WRF_GPIO_OUT_CORE1
I/O
I/O
GPIO or 2.4 GHz TSSI CORE0 input from an optional external
power amplifier/power detector.
W14
GPIO or 2.4 GHz TSSI CORE1 input from an optional external
power amplifier/power detector.
RF Switch Control Lines
U19
W19
V19
T19
R23
R19
N19
P19
R22
N23
P22
N22
M23
M19
M22
L19
RF_SW_CTRL_0
RF_SW_CTRL_1
RF_SW_CTRL_2
RF_SW_CTRL_3
RF_SW_CTRL_4
RF_SW_CTRL_5
RF_SW_CTRL_6
RF_SW_CTRL_7
RF_SW_CTRL_8
RF_SW_CTRL_9
RF_SW_CTRL_10
RF_SW_CTRL_11
RF_SW_CTRL_12
RF_SW_CTRL_13
RF_SW_CTRL_14
RF_SW_CTRL_15
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Programmable RF switch control lines. The control lines are
programmable via the driver and NVRAM file.
PCIe Interface
A11
A12
A10
A9
PCIE_REFCLKP
I/O
I/O
I/O
I/O
I/O
100Ω diff pair clock signal positive.
100Ω diff pair clock signal negative.
100Ω diff pair Tx data signal negative.
100Ω diff pair Tx data signal positive.
100Ω diff pair Rx data signal positive.
PCIE_REFCLKN
PCIE_TDN0
PCIE_TDP0
A7
PCIE_RDP0
Document Number: 002-15054 Rev. *I
Page 51 of 94
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